BD7904FS ROHM Co. Ltd., BD7904FS Datasheet - Page 3

• Manufacturer Part Number: BD7904FS
• Description: 5ch Power Driver For Cd-rom, Dvd-rom
• Manufacturer: ROHM Co. Ltd.

   
Pin No.
∗ Positive/negative of the output terminals are determined in reference to those of the input terminals.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
Pin name
REGOUT
SPVM1
SPRNF
SPVM2
REGNF
DGND
PGND
CTL1
CTL2
SPIN
DV
HW+
HW−
GND
GND
GND
GND
GND
HU+
HU−
HV+
HV−
VC
HB
W
U
V
CC
Hall amp. U positive input
Hall amp. U negative input
Hall amp. V positive input
Hall amp. V negative input
Spindle driver power supply 1
Hall amp. W positive input
Hall amp. W negative input
Driver logic control input 1
Driver logic control input 2
Spindle driver output U
Spindle driver output V
GND
GND
GND
GND
GND
Spindle driver power ground
Spindle driver output W
Reference voltage input
Spindle driver input
Spindle driver current sense
Hall bias
Spindle driver power supply 2
PWM block pre-ground
PWM block control power supply
Regulator output voltage pin
Regulator return pin
Function
Pin No.
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
REGGND
Pin name
TKOPO
FCOPO
SLOPO
SLVDD
SLRNF
TKOPI
FCOPI
AGND
SLOPI
FCO−
FCO+
TKO−
TKO+
LDO−
LDO+
SLO−
SLO+
AVM
GND
GND
GND
GND
GND
LDIN
V
FG
CC
Regulator block ground
Tracking driver OP-AMP-input
Tracking driver OP-AMP output
Actuator driver block power supply
Focus driver OP-AMP-input
Focus driver OP-AMP output
Focus driver negative output
Focus driver positive output
Tracking driver negative output
Tracking driver positive output
Ground
GND
GND
GND
GND
GND
BTL pre and Loading power supply
Loading driver negative output
Loading driver positive output
Sled driver negative output
Sled driver positive output
Sled driver PowerMOS pre-supply
Sled driver OP-AMP output
Sled driver OP-AMP- input
Sled driver current sense
Loading driver input
Frequency generator output
Function